Major cations - Ca, Mg, Fe, Na, K
Concentration maps of Ca
1984 - 1996
  
2007 - 2010
  
Concentration map of Na (2007 - 2010)

Concentration map of K (2007 - 2010)

Concentration map of Mg (2007 - 2010)

Concentration map of Fe (2007 - 2010)

Concentration map of Mn (2007 - 2010)

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Map of collected samples
Distribution map of pH, conductivity
Concentration maps: SO4, NO3, Cl, F, As, Be, Cd, Cu, Pb, Zn
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